"National security is the foundation of national rejuvenation. In adhering to the overall concept of national security, we resolutely safeguard national sovereignty, safety, and development interests." On August 1, 2023, the official WeChat account of China's Ministry of State Security made its debut with these powerful words, becoming an important window, through which the whole society could gain an understanding of the work conducted by national security agencies.

China's national security agencies are responsible for counter-espionage work, while also undertaking functions such as safeguarding political agency and overseas security. The national security agencies have always been shrouded in mystery, representing a covert front line with special status and missions. They have played an important role in defending the state power, maintaining social harmony and stability, and protecting people's lives and property.

To mark the fourth Chinese People's Police Day which falls on January 10, Global Times reporters went to two border towns in North and South China - Manzhouli in Inner Mongolia Autonomous Region and Xishuangbanna Dai Autonomous Prefecture in Yunnan Province, to conduct in-depth interviews with local national security officers, who faithfully practice the pledge of dedicated service to the people.

Head-to-head frontline battles

Manzhouli is covered in white snow amid the howling wind in December 2023. The city stands near the boundary marker of the China-Mongolia-Russia tri-border, and a borderline that stretches over 1,000 kilometers. Officers from the national security bureau of Manzhouli told the Global Times that this special geographical location has always made the city an important channel and springboard for hostile forces to infiltrate and sabotage the country. The continued sagas of silent struggles of infiltration and counter-infiltration, subversion and counter-subversion, and division and counter-division play out here on a regular basis.

During her first mission, Li Yue (pseudonym), a Generation-Z officer from the national security bureau in Manzhouli, experienced the acuteness and complexity of these struggles.

Similar to a plot straight out of a film, Li Yue had to disguise herself as a waitress in a restaurant to get closer to a suspect, in order to coordinate with her colleagues' next move.

"In the few steps that it took for me to come face to face with him, I tried to maintain my cool, not allowing myself to show any hint of nervousness. Trained professionals quickly notice such things, so I had to meet his gaze with a placid one," Li Yue recalled. 

Like any ordinary waitress, she greeted the suspect with a smile, led him to his seat, offered him a glass of water, took his order, and also attended to the rest of the diners. "My colleagues and I did a lot of work beforehand, making contingency plans for various possible eventualities. The suspect would never know that a covert operation was fully underway." 

Shortly after this mission, Li Yue changed her online handle to "actor." Exquisite "acting" skills were just some of the many skills and qualities possessed by the national security officers. The success of each operation relies on meticulous planning, creative thinking, strong psychological resilience, and unwavering courage.

Thousands of miles away on the Southwest China's border region, Xishuangbanna national security bureau officers guard the region with Laos and Myanmar, which stretches for nearly a thousand kilometers. Their main task is to prevent foreign spies and intelligence personnel from infiltrating or fleeing from China. 

In 2015, the Xishuangbanna bureau successfully cracked down on an espionage case that was remotely plotted by a foreign intelligence agency. In August of that year, the bureau received a tip from higher-level authorities that a man surnamed Li, who used to work in an important governmental department, had been subverted and recruited as a spy by a foreign intelligence agency while studying abroad. Signs showed that Li was about to escape the country recently, very possibly via Xishuangbanna.

After receiving the arrest order, the officers of the Xishuangbanna bureau carefully analyzed Li's possible escape routes, mobilized all forces to set up checkpoints and surveillance, and finally tracked him down.

Song Bin (pseudonym), a Xishuangbanna bureau official who participated in the operation to arrest Li, told the Global Times that "during the operation, we found that Li was using various anti-surveillance methods to evade arrest. Various signs indicated that there were personnel from foreign spy intelligence agencies behind him [who had taught him how to evade police detection]." 

On the sixth day of the arrest operation, Li arrived at an exit channel on the Xishuangbanna border. National security officials from the Xishuangbanna bureau, who were disguised as boat operators, waited at the exit channel and noticed that Li matched the photo in the arrest warrant and made their approach. 

"We asked to see his identity (ID) card if he wanted to take our boat to go abroad. He provided us with a fake ID card, which showed his registered place of residence as Southwest China's Sichuan," Song said. 

The Xishuangbanna bureau police would not be able to arrest Li if they could not confirm his identity, otherwise it would alert the target and the operation would fail. At this critical moment, one of the officials, who was familiar with various dialects in the southwest, had a brilliant idea: Now that Li had pretended to be a Sichuan native, why not converse with him in the Sichuan dialect? 

This sudden "test" caught Li off-guard, and his expression changed drastically, revealing his guilt. The Xishuangbanna bureau officials then confirmed his identity as the fleeing suspect. The officers also immediately revealed their identities before taking Li into custody while he pleaded not to be arrested.

Silent, dangerous mission

In the process of safeguarding national security, national security officials have also demonstrated their great spirit of dedication and sacrifice.

"We often have to face unexpected dangers, and in some critical moments, we can only put our lives on the line," an official from the Xishuangbanna bureau surnamed Yan told the Global Times. 

Yan recounted an instance in which a person suspected of engaging in activities that endangered national security fled to Xishuangbanna with the intention of leaving the country. During the arrest operation, while not sure of whether the suspect was armed, Yan and several other Xishuangbanna bureau officials decisively charged forward. 

"Although he was alone, he had received relevant military training and had a mindset of fighting to the death. At that critical moment, we didn't have time to think; we could only rush forward and firmly restrain him. Fortunately, his luggage only contained cash and some forged documents," Yan said.

Being able to endure hard work and loneliness is how many national security officers evaluate their own work. Jiang Dingbian (pseudonym), an officer from the national security bureau in Manzhouli, has devoted himself to security operations for nearly 30 years. He told the Global Times that those officers have to make long-term contingency preparations for every case. "It may take three to five years, or even more than a decade, to track down just one lead." 

The national security bureau in Manzhouli once arrested a target that had been under surveillance for years. Jiang spent three years in analyzing thousands of pieces of information before finally discovering evidence of the target's involvement in other illegal activities.

In order to promptly identify all possible risks, the national security bureau in Manzhouli has set up a room that is less than 20 square meters, where national security officers work in shifts around the clock. For a long time, this small space had no air conditioning and the water supply would occasionally be cut off. In the summer, the national security officers would often be drenched in sweat, while in the winter, they had to endure the freezing cold wind constantly seeping in through the cracks in the window at minus 30 C. 

"Some cases have made no progress after years of effort, which made me wonder whether it was worth persisting. But we cannot overlook any potential national security risks and threats. This is our original intention and our duty," Li Yue said.

Whole-society defense line

National security is the common aspiration and fundamental interest of all ethnic groups in the country. Safeguarding national security is also the shared responsibility of all ethnic groups in the country.

Manzhouli national security bureau officer Li Bin (pseudonym) said that since the first National Security Education Day on April 15, 2016, the whole society has become more actively involved in various efforts to safeguard national security. 

On one hand, the government, institutions, enterprises, and individuals actively cooperate with national security work and provide support. On the other hand, the whole society has formed an atmosphere of responsibility for national security and the public actively reports suspicious clues, providing strong support to the work of national security agencies.

Li Bin revealed that the national security bureau of Manzhouli once received a report from a retired person, who said to have found a telephone line of a classified unit that was tens of meters long pulled out in the courtyard, leading to a residential building across the street, on his way back home. 

The veracity of the situation was confirmed shortly thereafter. It was a staff member of the unit who privately set up the telephone line for personal use, risking the leakage of classified information.

The national security bureau of Manzhouli quickly contacted the unit and requested immediate rectification of the situation to eradicate potential risks. 

In 2015, the national security agencies officially launched the 12339 hotline for citizens. In 2018, China's Ministry of State Security launched the internet reporting platform website www.12339.gov.cn. In April 2023, the national security agencies honored individuals who had made contributions in reporting activities that endangered national security for the fifth consecutive year. In August 2023, the official WeChat account of the Ministry of State Security opened a reporting platform.

Some officials from the Yunnan national security department reached by the Global Times said that they have witnessed a significant increase in awareness in the recent past, along with an understanding and participation of the public in safeguarding national security. This has been reflected in the increased number and quality of reports received through the 12339 hotline.

In recent years, with the help of public reports, the Yunnan national security department has successfully solved multiple cases related to ecological and military security, preventing valuable samples of flora and fauna and sensitive military equipment information from being transferred to foreign intelligence agencies.

Selfless, anonymous heroes

"Sorry but I can't disclose the specific details due to confidentiality regulations;" "Please do not mention my name and personal information;" "As a national security officer, I am willing to be an anonymous hero." These are phrases that Global Times reporters have heard repeatedly during interviews, highlighting the uniqueness of covert operations - selflessness, anonymity, and humility.

In the archives of the national security bureau in Manzhouli, two large cabinets occupy an entire wall, filled with files on the same case. This case has spanned over 20 years, involving several generations of national security officers. Behind each page of these files are all-night efforts, undercover operations in harsh weather conditions, and thrilling covert confrontations. However, once they leave the office, these experiences are never mentioned and may never be known.

In the battlefield of safeguarding national security, the invisible gunshots and unheard gun battles have never ceased. It is because of the silent dedication and perseverance of every national security officer that the sovereignty, security, and development interests of the country are protected, and the peaceful lives of the people are undisturbed.

Jiang said that many national security officers silently dedicate their entire lives to their work, without receiving applause and without the spotlight and dazzling stage. They quietly exit the stage after remarkable service, and the driving force that supports them is their firm belief in their hearts.

Currently, the meaning, purpose, and value of national security in our country are richer than at any time in history, and the internal and external factors affecting the same are more complex than at any time in history. The challenges faced in safeguarding national security are unprecedented. As national security officers have stated, "We always maintain a state of readiness, prepared to fight against any behavior that threatens national security."

Hidden in silence, the sword shines in invisibility. In this new era, Chinese national security agencies are embarking on a new journey to faithfully fulfill their duties, safeguard national sovereignty, security, and development interests, be an integral part of the great rejuvenation of the Chinese nation, and compose a new anthem for nameless heroes.

Some 30,000 runners competed in the Beijing Marathon in the early morning of Sunday, starting at the Tian'anmen Square in downtown Beijing.

The race in the Chinese capital, dubbed the country's flagship marathon, attracted over 130,000 runners to register for the 30,000-slot lucky draw, as all participants, regardless of athletic skill level, are required to take on the full distance of 42.195 kilometers.

Chinese runner Chen Tianyu brought fresh competition to the race traditionally dominated by elite African runners, as he finished in the overall seventh place with a time of 2:08:11. Geleta Ulfata of Ethiopia won the championship in 2:07:41.

Though the result, surpassing the previous best domestic time set by Ren Longyun of 2:08:15 in 2007, Chen's time was just one second short of seeing him qualify for the Paris Olympics. But it makes him the third-fastest Chinese runner of all time, following compatriots He Jie and Yang Shaohui who clocked in 2:07:30 and 2:07:49 respectively at the Wuxi Marathon in March 2023.

"My original goal was to finish in under 2 hours and 10 minutes, but I felt great when competing with the elite runners," Chen, who is no stranger to endurance races, told reporters after the race, before crediting the optimization of the racecourse that reduced turns and slopes that contributed to his achievement.

The racecourse for the Beijing Marathon, the oldest marathon in China as it inaugurated in 1981, is considered picturesque, as it features several iconic landmarks in the ancient and modern metropolis including the Military Museum of the Chinese People's Revolution and the CCTV Tower, before concluding at the Olympic Park near the Bird's Nest or the National Stadium where the opening ceremonies of the 2008 Olympic Games and 2022 Winter Olympic Games were held.

Tandem marathon races were also held on Sunday in a number of provincial capitals across China, including Xi'an, Northwest China's Shaanxi Province; Ji'nan, East China's Shandong Province; Zhengzhou, Central China's Henan Province; Changsha, Central China's Hunan Province as well as Chengdu, Southwest China's Sichuan Province.

Running fever

Before the COVID-19 pandemic, marathons had grown in popularity in China.

In 2018, China witnessed a marathon boom with 278 certified events held in the Chinese mainland, followed by a total of 330 races in 2019, before a 2020 dip to just 51 races, according to the Chinese Athletics Association (CAA).

World Athletics road running manager Alessio Punzi said earlier in October that 68 Chinese running events filed their applications to World Athletics in 2023, while a total of 133 road races across China were registered between January and June, according to the CAA.

For those unable to make it to the Beijing event, an online race was also held on the popular fitness tracking site Keep, where participants who finished a recorded marathon race elsewhere stood to win a commemorative medal. As of press time, nearly 30,000 people had registered in the online race. 

Alongside an increase in the popularity of marathons in China is an increasingly health-conscious population in the country. 

A 2020 National Fitness ­Activities Report released by the Beijing-based ­National Fitness Monitoring Center revealed that among adults, walking and running were the two most popular physical activities, accounting for 22.7 percent and 19.8 percent, respectively.

"Hosting marathon races could immediately boost local tourism and further stimulate local economic growth, as it is a good marketing tool which utilizes good word of mouth if the events are well organized," Mao Jiale, a Chengdu-based sports commentator, told the Global Times on Sunday.

"Nowadays fitness and health have taken root in people's hearts, as we see the number of people taking exercise growing, especially after the national policy on fitness was introduced."

Recent statistics show that the number of people who regularly participate in outdoor exercise in China currently exceeds 400 million. 

Health concerns

Some fans raised concerns over the air quality in the Chinese capital on Sunday when the Beijing Marathon was held, as data from the China National Environmental Monitoring Centre designated it as "mild to middle pollution." 

This is not the first time that organizers have had to contend with air quality issues. 

It is, however, "extremely difficult" to reschedule the event as nearly half of the participants had made their way to Beijing from other cities across the country, an official with the organizing committee told the Global Times.

Jiang Chong, a physiotherapist who is also an occasional distance runner, warned that amateur distance runners should be aware of the consequences if they decide to participate in an ultramarathon.

"The path to marathon success is no walk in the park. Injuries to the hip, knee, and ankle joints are regularly suffered by marathon runners, as it is in fact a challenging endeavor to finish a marathon," Jiang told the Global Times.

"Targeted training in strength, speed, and endurance is paramount. Simply lacing up your running shoes without adequate preparation can lead to injuries that may prematurely end one's love affair with the sport."

She underlined that it takes scientific training, gradual progress, and setting achievable goals to successfully tackle the full 42.195-kilometer race.

"Warming up adequately before running, stretching after running, and training progressively are the foundations of consistent long-distance running," Jiang said.

"It is not only a matter of joints, but it also tests the effectiveness of the cardiovascular system. Regular medical checkups will also help to detect problems in time before worse problems occur."

Japan will start procuring Tomahawk cruise missiles from the US in fiscal year 2025, a year earlier than initially planned, Japan's defense minister Minoru Kihara announced on Wednesday at a press event in Washington after holding his first face-to-face talks with his US counterpart Lloyd Austin, the Kyodo News reported. Chinese military observers warned that if Japan intends to target other countries, it will also be included in the scope of potential counterstrikes. Moreover, the US' plan to deploy Tomahawk cruise missiles on its allies in the Asia-Pacific region, targeted at China, is an underestimation, and will ultimately be futile.

As part of preparations to acquire "counterstrike" capabilities, or the ability to hit enemy bases should the need arise, Japan plans to purchase 400 Tomahawks, which have a strike range of around 1,600 kilometers.

The defense chiefs "shared the recognition" that the procurement of Tomahawk Block-4 missiles will begin in the fiscal year starting in April 2025, the Kyodo News cited a Japanese official as saying, noting that the purchase still needs to be approved by the US Congress, with both sides, for this reason, refraining from calling it formally "agreed."

Tomahawks, first used in the 1991 Persian Gulf War, are allegedly able to cover Chinese coastal areas and are deemed essential by Japanese officials to beef up Tokyo's defense capabilities until Japan deploys home-developed ones.

Japan's deployment of Tomahawk missiles from the US aims to strengthens its ability to launch preemptive strikes and enhances military cooperation with the Washington, Song Zhongping, a Chinese military expert and TV commentator, told the Global Times on Thursday.

He explained that the sale of Tomahawk cruise missiles to Japan primarily focuses on their deployment on Aegis-equipped warships.

Chinese observers believe the US allows Japan to rearm itself and is helping Japan to acquire long-range attack capabilities to turn Japan into a more important pawn against China, while Japan wants to help the US to fight China in a bid to realize the "normalization" of its national defense force and achieve large-scale military expansion.

However, if Japan dares to launch attacks on other countries at sea, its own territory will also become a target for retaliation, therefore, Japan should not miscalculate and think that it can use weapons and equipment without facing consequences, Song warned.

In August, Australia announced it would spent $833 million to boost its long-range strike capabilities as it finalized a deal to buy more than 200 Tomahawk cruise missiles from the US, making it one of the three countries to have Tomahawks along with the US and the UK.

Experts said deploying Tomahawk missiles in allies reflected the US ambition of beefing up its military strength in the Asia-Pacific region and speeding up the construction of a "Tomahawk missile encirclement circle" targeting China.

Both Australia and Japan will undoubtedly face retaliation if they use their missiles to threaten the homelands of other countries. Both countries need to ask themselves what is more important: serving as pawns to maintain US hegemony or ensuring the security of their own nations? Song said.

The military expert also noted that countries daydreaming about forming an encirclement of China are overestimating their capacities, Song noted.

Even though a decade has passed, Grace Jessica can still vividly recall the moment when she read about Chinese President Xi Jinping's proposal on the "Belt and Road Initiative (BRI)" made during his visit to the Indonesian parliament in the newspaper. She referred to it as a crucial moment for herself because, since then, she has sensed Indonesia's increasing desire to connect with China, just like many other developing countries. From that moment on, her curiosity about China began to grow.

Almost a decade on, in 2019, Jessica, as a fresh university graduate, took a job as an assistant director at the Tegalluar Station, the end point of recently unveiled Jakarta-Bandung High-Speed Railway (HSR) line, a landmark project under the China-proposed BRI. Her participation in such an important national infrastructure project has become a point of pride for her family, and has made her a celebrity among Indonesian people.

"For us, mentioning China means 'more bridges, more roads, and more opportunities.' The rise of China is marked by its increasingly strong economic power, which is reflected in visible and usable roads and bridges," said Jessica. 

Jessica's summary of China is a microcosm of what China represents in the minds of many young people, especially Gen-Zers in Southeast Asian countries. 

In a recent visit to Thailand, Indonesia, and Malaysia, it was evident to the Global Times that despite West-led chatter and misinformation regarding China, many in these Southeast Asia countries have a rational understanding of China. They see more of China's friendliness, its mutual benefit philosophy, and positive regional influence rather than as an alleged threat.

Embracing China means embracing hope

Unlike previous generations, the younger generation in many Southeast Asian countries positively views China's market and technological strength. Jessica told the Global Times that Indonesians see better career development opportunities through the BRI. "I see embracing China as embracing hope both personally and nationally. The BRI infrastructure project in Indonesia means shorter distances to reunite with family, national pride, and expectations for rapid development." 

Gen-Zer Rizka Anggraini, a provincial top scorer in Indonesian national exam from South Sumatra Province, Indonesia, shares the same viewpoint. After graduating from high school, she applied for a Chinese government scholarship and chose to study in China instead of traditionally popular Western countries. Even before graduating, she had secured a place at a Chinese state-owned enterprise investing in energy projects in Indonesia. Some of her friends envy her proficiency in Chinese and her background of studying in China, which means a future income, especially as Chinese companies gradually expand their presence in Indonesia.

In February, the ASEAN Studies Centre of the ISEAS-Yusof Ishak Institute in Singapore released "The State of Southeast Asia: 2023 Survey Report," showing that China continues to be seen as the most influential economic (59.9 percent) and political-strategic (41.5 percent) power in the region. In comparison, the percentage of respondents who believed that "the US has the greatest influence" in these two areas were 10.5 percent and 31.9 percent respectively.

Another survey by Pew in 2022 showed similar trends, as a median of 66 percent across 19 countries believe that China's influence on the world stage is growing stronger, while just 32 percent say the same about the US. In each country surveyed, more than half of adults say China's influence in the world is strengthening.

The expansion of this influence is driven by the increasing presence of Chinese brands and China's burgeoning soft power on the global stage. 

Soft power promotes people-to-people ties

When journalists from the Global Times interviewed young people on the streets of Bangkok, Thailand, and asked what they were most interested in about China, their answers were mostly Chinese idols and TV dramas, Chinese cuisine, and "Made in China" products. 

In many Southeast Asia cities, Mixue, a Chinese store chain offering fresh ice cream and tea, for example, has become trendy on social media platforms. Social media users post about their daily cravings for Mixue products and make jokes and memes. Global Times reporters can often see the queue at the door of its shops.

Not only are Chinese brands popular in Thailand, but in 2020, Super Poll, a pollster in Thailand, conducted a survey on the "Sino-Thai friendship during the pandemic." In response to the question of "who is Thailand's closest friend during the pandemic," 73.3 percent of the respondents chose China, while Japan, the European Union, and the US were chosen by 8 percent, 4.4 percent, and 3.4 percent respectively. Noppadol, the head of Super Poll, stated that the survey shows the trust that Thai people have in China.

The Global Times' visit to the Confucius Institute at the Chulalongkorn University revealed that in Thailand, Chinese has gradually replaced Japanese as the second-largest foreign language after English, which reflects young people's increasing enthusiasm for Chinese and interest in China.

When discussing the impressions of young Malaysians toward China, former Malaysian ambassador to China Dato Abdul Majid emphasizes a division between them - those who have traded with or visited China usually hold a more positive perception, while those who have never been to China and only learn about the country from the media do not have a true understanding of the real China.

Majid hopes for more opportunities for communication to allow these people to see an objective and authentic China in order to eliminate misunderstandings.

China's first commercial spacecraft launch site in Wenchang, South China's Hainan Province, is ramping up the final stages of construction, and plans to commence normalized commercial launch operations in 2024, a representative from the launch site told the Global Times on Wednesday.

The construction of the commercial spacecraft launch site began in July 2022, and the infrastructure needed for the site will be finished by the end of 2023. The first commercial launch mission will commence in the first half of 2024, and the launch site will enter the operations and normalized launch mission in the same year.

"According to current plan, the commercial launch site will commence launch missions at a high frequency in 2025, which means commercial launch missions will occur each month," Dong Chenghua, a representative from the administration bureau of the Wenchang International Aerospace City, where the commercial launch site locates, told the Global Times on Wednesday.

On April 13, 2018, China announced a decision to support Hainan in developing the whole island into a pilot free trade zone and gradually exploring and steadily promoting the establishment of a free trade port (FTP) with Chinese characteristics. By the end of 2025, the Hainan FTP is scheduled to initiate independent customs operations throughout the whole island according to a master plan released by the central authorities in 2020.

As one of the 13 key projects of the island, the Wenchang International Aerospace City will support the Hainan FTP construction from sectors of aerospace and relevant industries.

During 2015 to 2021, the scale of China's commercial spacecraft launch industry realized an average annual growth rate of 22.3 percent, and may hit 2.3 trillion yuan ($320 billion) in market size by 2024, industry data revealed.

Another representative from the administration bureau told the Global Times that the commercial spacecraft launch is in great demand among domestic private enterprises at present, which is mostly used in communication, remote control and navigation.

The Wenchang aerospace launch site is China's only coastal launch site with multiple natural advantages such as lower geographic latitude, less transport restrictions and high security for landing sites, which will largely reduce the cost for commercial spacecraft launch.

The launch site has facilitated multiple key launch missions including the China's space station Tiangong and the lunar probe Chang'e.

In addition, Wenchang commercial spacecraft launch site may have chance to explore the commercial launch market among Southeast Asian countries based on Hainan's geographic advantages.

There must be something wrong with the guy who never leaves home, right? Maybe not — at least if that guy is a male spotted hyena. Males that stay with their birth clan, instead of taking off to join a new group, may simply be making a good choice, a new study suggests.

Spotted hyenas are a matriarchal society. Females are in charge. They rank higher than every male in the clan. And the females generally stay with the clan for their entire lives. But males face a choice when they reach two and a half years in age. They can stay with the clan, or they can leave and join a new clan.

Each choice has its pros and cons. Staying with the clan means that a male hyena keeps a place at the top of the male pecking order. He’ll probably have his mother around to help. But he’ll be limited in the number of females he can mate with, because many of the female hyenas won’t mate with him because they might be related. If he joins a new clan, the male hyena might have access to more females — and they might even be better than the ones in his home clan — but he’ll start with the lowest social rank and have to spend years fighting his way to the top.

Among most group-living mammal species, the guys that stay at home turn out to be losers, siring fewer offspring. But spotted hyenas, it appears, are an exception.

Eve Davidian of the Leibniz Institute for Zoo and Wildlife Research in Berlin and colleagues tracked 254 male spotted hyenas that lived in eight clans in Ngorongoro Crater in Tanzania throughout their lives, a study lasting 20 years. When these males reached the age of maturity, they left their clans to take a look at the other options available to them. Forty-one hyenas returned to their home clans, and 213 settled with new ones.

Even though the males that stayed at home probably had fewer potential breeding partners, they still managed to sire as many offspring as those males that left for greener pastures. Many mated at an earlier age, and they tended to mate with higher-ranking females than males that joined new clans. And both groups lived similar lengths of time, the researchers report March 18 in Science Advances.

The guys who stay at home, it seems, aren’t losers who couldn’t find better prospects elsewhere. They just found good enough prospects at home, where they are at the top of the social ladder — and have mom around to help them get access to food and females.

Seems like a good strategy — for hyenas, at least.

Even top-caliber diamonds aren’t perfect. And their imperfections are finally settling a debate about the origins of the gem-quality diamonds used in jewelry.

Previously, scientists had an explanation only for how cloudy and impurity-ridden fibrous diamonds form. Those diamonds crystallize inside fluid pockets deep within the Earth that contain compounds called carbonates. Carbonate-containing impurities inside fibrous diamonds provide information about the diamonds’ origins. Gem diamonds typically don’t contain these impurities, so scientists argued over whether the gems formed under different conditions than fibrous diamonds.
After an exhaustive hunt, geochemists have at last found microscopic impurities within gem-quality diamonds. These flaws suggest that pretty and ugly diamonds form from the same kinds of carbonate-containing fluids, the researchers report in the June 1 issue of Earth and Planetary Science Letters. The finding may also offer insights into the history of plate tectonics.

The work “gives us the first strong constraint on how gem diamonds grow,” says Thomas Stachel, a petrologist at the University of Alberta in Canada who was not involved in the research. “People had proposed various explanations for how these diamonds form, but it seems diamond formation is less diverse than we thought.”

Diamonds are made up of carbon atoms. At the pressures and temperatures found in the deep Earth, these carbon atoms can form a crystal structure. Rising magma then carries the crystals to the surface.

The type of diamonds prized for jewelry formed as early as 3.5 billion years ago. Fibrous diamonds date back only a few million years and formed more quickly. That quick creation trapped bits of surrounding material inside the crystal structure. Those inclusions suggest that these diamonds formed from the carbon atoms in carbonate-containing fluids. Gem-quality diamonds formed more slowly and usually don’t contain any inclusions. “That’s why they’re gem quality —there’s nothing in them,” says study coauthor Brooke Matat Jablon, a geochemist at the Hebrew University of Jerusalem.
Jablon and geochemist Oded Navon, also at the Hebrew University, hunted for inclusions in diamond gemstones. The researchers finally found what they were looking for in diamonds that are symmetrical across a central boundary. As these diamonds grew, a microscopic inclusion would sometimes become trapped along the boundary. Using a beam of electrons, the researchers identified 32 inclusions in eight of 30 diamonds they examined. Twenty of those inclusions were the same carbonate-bearing fluids found in the fibrous diamonds.
The finding suggests that while fibrous diamonds and gem-quality diamonds differ in age and price, they share common origins. “We’re coming full circle on the story,” Jablon says. “We can quiet a debate that has been raging in the field for a long time. Going forward, we can generally assume most diamonds crystalize the same way.”

A similar mechanism for creating older, gem-quality diamonds and younger, fibrous diamonds suggests that Earth has maintained diamond-forming conditions for billions of years, Stachel says. Carbonates are carried into Earth’s depths when tectonic plates subduct and sink into the planet’s interior. If ancient diamonds form from carbonates, plate tectonics could have already been churning the planet’s exterior 3.5 billion years ago, he says.

Seabirds called common murres appear to use preening as a way to negotiate whose turn it is to watch their chick and who must find food. And when one parent is feeling foul, irregularities in this grooming ritual may send the other a signal that all is not well, researchers report in the July issue of The Auk: Ornithological Advances.

“The fascinating part of this study is the inference that communication between mates allows murres to negotiate the level of effort that each member of the pair puts into the breeding effort,” says John Piatt, a wildlife biologist with the U.S. Geological Survey in Anchorage, Alaska. “Reproductive success of this species requires a high degree of cooperation by each mate as they switch duties.”
Common murres (Uria aalge) lay only one egg each breeding season. Parental roles aren’t determined by gender for the birds; mothers and fathers take turns watching over their chick and foraging for fish. When one parent returns with a fish for the chick, the couple preen each other and switch roles. This swapping ceremony typically happens three to four times a day.

But study coauthor Carolyn Walsh noticed that switches don’t always go smoothly. Video of 16 pairs of murres, documenting a total of 198 role swaps, showed that sometimes both birds appeared indecisive. Each parent would hop on and off the chick several times before the birds preened each other and one left to fish. “It’s as if they’re resisting leaving the colony; neither bird actually wants to go,” says Walsh, an animal behavior researcher at Memorial University of Newfoundland in Canada.
For about a fifth of all switching ceremonies, the brooding parent was slow to preen its mate and then refused to switch, forcing the parent that had just returned with a fish to go back out and fish some more.
Irregular behavior also occurred when the parent on fishing duty returned without food, which happened about 10 percent of the time. The empty-beaked bird would quickly start preening its mate, but the mate would be slow to preen back, or might not preen at all. “The brooder is basically communicating, ‘The chick still needs a fish, you better go get one,’” Walsh says.
The ceremony could be a way for the seabirds to communicate their well-being, Walsh says. By withholding preening and delaying the switching ceremony, a murre in poor condition may be trying to negotiate with its partner to have the easier job of brooding. Staying in the nest may allow the bird to rest and recover its strength.

Flying out to sea to fish is energetically costly for murres because they aren’t very aerodynamic. The seabirds are “absolutely ridiculous looking” when they fly, Walsh says. “Their wings are really meant for swimming in the water.”

In physical tests, Walsh and colleagues found a correlation between body condition and ceremony irregularities. Her team captured birds, weighed them and sampled their blood for beta-hydroxybutyrate, a metabolite associated with continual weight loss.

Switching ceremonies lasted about two minutes longer for the lightest birds, around 900 grams, compared with the heaviest birds weighing in at about 1,000 grams. Birds with lower mass and higher metabolite levels also were more likely to preen irregularly, Walsh says.

The longer ceremonies may also be a sign that there’s unrest in the nest. Murres usually mate for life, but pairs can “divorce.” A previous study by Walsh found that mates heading for a split take more time to switch roles.

When Hurricane Maria’s 250-kilometer-per-hour winds slammed into Puerto Rico on September 20, they spurred floods, destroyed roads and flattened homes across the island. A week-and-a-half later, parts of the island remain without power, and its people are facing a humanitarian crisis.

The storm also temporarily knocked out one of the best and biggest eyes on the sky: the Arecibo Observatory, some 95 kilometers west of San Juan. The observatory’s 305-meter-wide main dish was until recently the largest radio telescope in the world (a bigger one, the FAST radio telescope, opened in China in 2016).

As news trickled out over the past week, it appeared that the damage may not be as bad as initially reported. The observatory is conserving fuel, but plans to resume limited astronomy observations September 29, deputy director Joan Schmelz tweeted earlier that day. “#AreciboScience is coming back after #MariaPR.”

But the direct whack still raises the issue of when – and even whether – to repair the observatory: Funding for it has repeatedly been on the chopping block despite its historic contributions to astronomy.

Arecibo’s recent work includes searching for gravitational waves by the effect they have on the clocklike regularity of dead stars called pulsars; watching for mysterious blasts of energy called fast radio bursts (SN Online: 12/21/16); and keeping tabs on near-Earth asteroids.

It played a key role in the history of the search for extraterrestrial intelligence: In 1974, astronomers Frank Drake, Jill Tarter and Carl Sagan used it to send messages to any extraterrestrial civilizations that might be listening (SN Online: 2/13/15). It was also the telescope that, in 1992, discovered the first planets outside the solar system.

Arecibo also holds a special place in my personal history: Watching actress Jodie Foster use the giant dish to listen for aliens in the movie Contact when I was 13 cemented my desire to study astronomy. I chose to go to Cornell University for undergrad in part because the university managed Arecibo at the time, and I hoped I might get to go there. (I never did, but my undergrad adviser, Martha Haynes, uses Arecibo to study the distribution of galaxies in the local universe.) And one of the first science stories I ever had published was about Cornell professors testifying to the National Science Foundation, which owns Arecibo, to defend the observatory’s funding.
Ten years after that story ran in the Cornell Daily Sun, Arecibo’s funding situation is still in doubt. It’s not clear how the recent damage will affect its future.

Telescope operator Ángel Vázquez sent the first damage reports via short-wave radio on September 21. A line feed antenna, used to receive and transmit radio waves to study the Earth’s ionosphere, broke off and fell onto the observatory’s main dish, damaging some of its panels. A second, 12-meter dish was thought to have been destroyed entirely.

But the smaller dish survived with only minor damage. “Initial reports said it had just been blown away, but it turned out that was not correct,” says Nicholas White of the Universities Space Research Association, which co-operates the observatory with SRI International, a nonprofit headquartered in Menlo Park, Calif., and Metropolitan University in San Juan, Puerto Rico. “That looks like it’s fine, although obviously we have to get up there and check it out.”

On September 23, observatory director Francisco Córdova posted a picture to the observatory’s Facebook page of two staff members standing in front of the big telescope dish with an outstretched Puerto Rican flag. “Still standing after #HurricaneMaria!” the post declares. “We suffered some damages, but nothing that can’t be repaired or replaced!”
The line feed antenna is a big loss, but it should be replaceable eventually, White says. And the damage to the main dish is fixable. Among the tasks was to get inside the Gregorian dome — the golf ball‒like structure suspended over the giant dish — and make sure the reflectors within it were aligned correctly. (Those reflectors were knocked askew by Hurricane George in 1998, says Cornell radio astronomer Donald Campbell.)

Meantime, Arecibo staff, who managed to safely shelter in place during the storm, “have been showing up for work, funnily enough,” White says. “People just want to get back to normal.”

But normal is also a state of uncertainty. The NSF, which foots $8.3 million of the observatory’s nearly $12 million a year operating costs, has been trying to offload their responsibility for it for several years. (NASA covers the balance.) And NSF’s agreement with the three groups that jointly maintain and operate the observatory runs out in March 2018. In 2016, the NSF called for proposals for other organizations to take over after that.

The NSF can’t estimate yet how expensive the repairs will be or how long they will take to complete, so it’s reserving comment on how the damage will affect decisions about the observatory’s future. “We need to make a complete assessment,” says NSF program director Joseph Pesce.

Personally, I hope the observatory remains open, both for science and for inspiration. I’m still waiting for a reply to that 1974 Arecibo message.